Posted by Crazy Cat on 12/22/05 19:23

Hi all,

I am having trouble getting linked Oracle 9 server in MS SQL Server
2005 Express to work properly. My machine is running Windows XP.

The Microsoft and Oracle OLE DB Providers have problems dealing with
Oracle's Numeric Data Type, so I decided to use Microsoft's OLE DB for
ODBC Provider and an Oracle ODBC source. When using the Microsoft ODBC
for Oracle Driver in my ODBC source I have inconsistent behavior.
Sometimes my queries are processed properly, then other times I get the
following error

OLE DB provider "MSDASQL" for linked server "ODBCBEAST" returned
message "[Microsoft][ODBC Driver Manager] Driver's SQLSetConnectAttr
failed".
OLE DB provider "MSDASQL" for linked server "ODBCBEAST" returned
message "[Microsoft][ODBC Driver Manager] Driver's SQLSetConnectAttr
failed".
OLE DB provider "MSDASQL" for linked server "ODBCBEAST" returned
message "[Microsoft][ODBC driver for Oracle][Oracle]".
Msg 7303, Level 16, State 1, Line 1
Cannot initialize the data source object of OLE DB provider "MSDASQL"
for linked server "ODBCBEAST".

I have no idea why sometimes I can connect to the linked server with no
problems and
why other times it performs like this. I'm not changing anything about
the system I can think of. When I use an Oracle client (PL/SQL) I have
absolutely no problems connecting. TNSPING returns that the connection
is good.

This is unacceptable so I decided to try my luck with the Oracle 10g
ODBC driver. However when I use this and perform an openquery select
against the linked server I get back only 11 rows, when I know that the
database has over 100 rows (in fact when using the Microsoft ODBC
driver and it works that's what I get). I figured maybe the buffer
setting needed to be raised in the ODBC configuration so I took it from
64000 to 600000 (a magnitude of 10) but I still get back only 11 rows.
I'm at my wit's end.

Any suggestions on resolving one or the other problem would be much
appreciated.

Thanks much

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